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Latency and Quality-of-Experience Analysis of a Networked Music Performance Framework for Realistic Interaction

Networked Music Performances (NMPs) are of increasing importance for creative and cultural professionals exploring new solutions and opportunities to perform at geographically distant locations. Although latency is one of the most important parameters for the transmission of audio information, it is rarely possible to obtain insights into the individual components of the transmission latency during NMP. In this publication a detailed evaluation of the latency budget of an ultra-low latency audio transmission in an NMP system for realistic interaction, build up between Hanover and Munich (˜500 km), is presented. To explore the Quality-of-Experience (QoE) of the NMP, objective results of a pop / rock piece played by five professional musicians are compared with their subjective perception. Measures of network performance, as well as the comparison of the objective musical results with the subjective user feedback suggest that the musicians had an experience close to a real performance.

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AES - Audio Engineering Society